package com.foreknow.demo12;

public class Student extends Person {
  @Override
  public void showMessage() {
    System.out.println(this.getName()+"--"+this.getAge());
  }

  public static void main(String[] args) {
    Student student = new Student();
    student.setName("tom");
    student.setAge(80);
    student.showMessage();//调用的showMessage方法一定是子类重写之后的方法
  }
}
